Analytical Ultracentrifugation Studies on Terpyridine-end-functionalized Poly(ethylene oxide) and Polystyrene Systems Complexed via Ru(II) ions

Rasa, Mircea; Tziatzios, Christos; Lohmeijer, Bas G. G.; Schubert, Dieter; Schubert, Ulrich S.

Abstract:

In this paper we study the solution properties of several metallo-supramolecular assemblies containing polystyrene (PS) and poly(ethylene oxide) (PEO) blocks linked via Ru2+ ions: PS20 −[Ru2+]−PEO70, PS20 −[Ru2+]−PS20, and PEO225 −[Ru2+]−PEO225. Sedimentation equilibrium measurements were performed to determine the molar mass distribution and state of association, and the sedimentation velocity measurements were used to obtain the molar mass distribution, sedimentation coefficient distribution, their average values, and average diffusion coefficient. The results obtained from the two types of experiments are compared and discussed.

Year:

2006

Type of Publication:

Article

Keywords:

Association; Analytical ultracentrifugation; Assemblies; Metallo-supramolecular; Molar mass; Sedimentation

Journal:

Progress in Colloid and Polymer Science

Volume:

131

Pages:

165 - 171